.tab {
  height: 50px;
  background: #484850;
  position: fixed ;
  padding-top: 5px;
  width: 100%;
  bottom: 0;
  display: flex;
}
.tab a {
  height: 100%;
  display: flex;
  padding-top: 5px;
  flex: 1;
  text-decoration: none;
  color: #ffffff;
  font-weight: bold;
  flex-direction: column;
  align-items: center;
}
.tab a img {
  display: block;
  height: 20px;
}
.tab a p {
  margin-top: 5px;
}
.abj{
   
  border-top: 5px solid red;
    margin-top: -5px;
}
